.fe-button {
  position: relative;
  padding: 0;
  margin: 0;
  display: inline-block;
  height: 44px;
  line-height: 44px;
  border-radius: 2px;
  box-sizing: border-box;
  font-size: 16px;
  text-align: center;
  -webkit-appearance: none;
  -webkit-text-size-adjust: 100%;
  outline: none;
  user-select: none;
}
.fe-button::before {
  content: " ";
  position: absolute;
  top: 50%;
  left: 50%;
  opacity: 0;
  width: 100%;
  height: 100%;
  border: inherit;
  border-color: #000;
  background-color: #000;
  border-radius: inherit;
  /* inherit parent's border radius */
  transform: translate(-50%, -50%);
}
.fe-button:active::before {
  opacity: 0.15;
}
.fe-button-noBorder {
  border: 0 none !important;
}
.fe-button-loading::before,
.fe-button-disabled::before {
  display: none;
}
.fe-button-icon + .fe-button-text,
.fe-button-loading + .fe-button-text {
  display: inline-block;
  vertical-align: top;
}
.fe-button-loading {
  display: inline-block;
  vertical-align: top;
}
.fe-button-block {
  display: block;
  width: 100%;
}
.fe-button-large {
  width: 100%;
  height: 50px;
  line-height: 48px;
}
.fe-button-normal {
  padding: 0 15px;
  font-size: 14px;
}
.fe-button-default {
  color: #333333;
  background-color: #fff;
  border: 1px solid #dddddd;
}
.fe-button-primary {
  color: #fff;
  background-color: #108ee9;
  border: 1px solid #108ee9;
}
.fe-button-danger {
  color: #fff;
  background-color: #ff3b30;
  border: 1px solid #ff3b30;
}
.fe-button-warn {
  color: #fff;
  background-color: #ff976a;
  border: 1px solid #ff976a;
}
.fe-button-plain-default {
  background-color: transparent;
  border: 1px solid #dddddd;
}
.fe-button-plain-primary {
  background-color: transparent;
  color: #108ee9;
  border: 1px solid #108ee9;
}
.fe-button-plain-warn {
  background-color: transparent;
  color: #ff976a;
  border: 1px solid #ff976a;
}
.fe-button-plain-danger {
  background-color: transparent;
  color: #ff3b30;
  border: 1px solid #ff3b30;
}
.fe-button-plain.fe-button-danger {
  color: #ff3b30;
}
.fe-button-plain.fe-button-warning {
  color: #ff976a;
}
.fe-button-mini {
  display: inline-block;
  min-width: 50px;
  height: 22px;
  font-size: 10px;
  line-height: 20px;
}
.fe-button-mini + .fe-button-mini {
  margin-right: 5px;
}
.fe-button-small {
  min-width: 60px;
  height: 30px;
  padding: 0 8px;
  font-size: 12px;
  line-height: 28px;
}
.fe-button-small + .fe-button-small {
  margin-right: 5px;
}
.fe-button-bottom-action {
  width: 100%;
  height: 50px;
  line-height: 50px;
  border: 0;
  border-radius: 0;
  font-size: 16px;
  color: #fff;
  background-color: #ff976a;
}
.fe-button-bottom-action.fe-button-primary {
  background-color: #ff3b30;
}
.fe-button-disabled {
  opacity: 0.5;
}
.fe-button-round {
  border-radius: 10em;
}
.fe-button-square {
  border-radius: 0;
}